Released from hippocampal neurons in response to experience, the cytokine prompted microglia to eat extracellular matrix around synapses. This facilitated growth of new spines, and sharpened memory.
The findings hint at a liver-brain axis that transmits inflammation from periphery to brain, and could suggest therapeutic targets for preserving brain function.
The tracer distinguished people with progressive supranuclear palsy from controls with a sensitivity of 85 percent, suggesting potential as a diagnostic for 4R tauopathies.
Behold single proteins on the move: Super-resolution microscopy of living cells suggests the infamous protease does not form complexes with other secretases in the plasma membrane—in mouse fibroblasts, that is.
Tissue from 13-week-old fetuses carrying the huntingtin repeat expansion shows defects in neuronal polarity and proliferation, which lead to fewer neurons populating some brain regions.
According to a structural analysis, fluorescently tagged tau fragments cannot form paired helical filaments. This suggests the assay does not measure prion-like propagation.
In striatal spiny projection neurons with mutant huntingtin, mitochondria spill immunogenic RNAs into the cytosol. These touch off innate antiviral signaling inside the neurons, which may spell their demise.
This neuronal protein regulates the complement cascade in the developing brain. Could it do the same in aging or neurodegenerative disease?
A slight drop in hospital admissions after amyloid PET, especially in people with positive scans, fell well short of the prespecified endpoint. Still, IDEAS is broadening into a research platform, and IDEAS 2 will add racial diversity.
This early marker distinguishes Alzheimer’s from controls and other neurodegenerative diseases more accurately than other biomarkers.
In updating their broad evaluation of the risk literature, the commission blamed three more modifiable factors for causing 6 percent of all dementia, concluding that 40 percent of cases can be prevented.
New research pushes back the age at which dementia risk from cardiovascular and metabolic factors begins. Should protective lifestyle interventions start in youth?
Early data suggest that CT1812 and AL001 shift biomarker levels in Alzheimer’s disease and frontotemporal dementia, respectively. BI 425809 fails to improve cognition.
In large population datasets, people who had been vaccinated against influenza or pneumonia appeared less likely to develop AD.
Carriers accumulate fewer tangles than noncarriers for a given amount of amyloid, explaining how the gene variant may lower a person’s Alzheimer’s risk.